CN213544663U - Open type low-voltage alternating current collecting device with switching value - Google Patents
Open type low-voltage alternating current collecting device with switching value Download PDFInfo
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- CN213544663U CN213544663U CN202022605052.5U CN202022605052U CN213544663U CN 213544663 U CN213544663 U CN 213544663U CN 202022605052 U CN202022605052 U CN 202022605052U CN 213544663 U CN213544663 U CN 213544663U
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Abstract
The utility model relates to a take open type low pressure alternating current collection system of switching value belongs to mutual-inductor technical field. The iron core type motor comprises an open shell (1), wherein the open shell (1) comprises an upper shell (1.1) and a lower shell (1.2), and an iron core (3) is arranged in the shell (1); the iron core (3) comprises an upper iron core (3.1) and a lower iron core (3.2), an elastic sheet (2) is arranged between the upper iron core (3.1) and the upper shell (1.1), and the upper iron core (3.1) is installed and then covered with an iron core bracket (4); a cover plate (5) is arranged at the top end of the lower shell (1.2); a groove is formed in the lower shell (1.2), the switch (7) is installed in the groove, and a limiting rib (12) is arranged in the groove; switch (7) are installed in the recess through spacing muscle (12), switch (7) top is provided with a protruding button. The utility model discloses it is rational in infrastructure, and very safe, in case the switch disconnection, switching value signal termination transmission plays the effect of suggestion open type low voltage transformer stop work.
Description
Technical Field
The utility model relates to a take open type low pressure alternating current collection system of switching value belongs to mutual-inductor technical field.
Background
Under the prior art, market low pressure opening current transformer wide application is in the electric power transformation project, has simple to operate and can live working's advantage. However, when the open type low-voltage transformer in the current market is installed, the buckle is not clamped or the iron core is not closed, and the risk of falling off or disconnection exists in the operation process; there is also a risk that the installation is manually opened again for a second time, which affects the accuracy.
For example, chinese patent with patent publication No. CN201829336U discloses a low-voltage open-type current transformer, which is used for collecting current signals of a low-voltage intelligent power distribution terminal system of 0.66kV and below. Including casing, iron core, skeleton, enameled wire, secondary terminal outgoing lines I, secondary terminal outgoing lines II and spring, the casing is by last casing and casing down to closing the constitution, the iron core comprises iron core long-end and iron core short-end, and the iron core long-end inlays in the epitheca, both sides are controlled at the iron core long-end to the skeleton suit, and the enameled wire coiling is on two skeletons, the iron core short-end inlays in the inferior valve internally, the spring inlays between iron core short-end bottom and inferior valve body bottom, the inserted sheet of going up the casing bottom inserts the slot of casing down to it is fixed with the long bolt cross-under.
The low-voltage open type current transformer disclosed by the patent has the advantages of being fast and convenient to install, but has the risk of falling off or being disconnected in the operation process; there is also a risk that the installation is manually opened again for a second time, which affects the accuracy.
Therefore, in order to solve the above-mentioned background problems, it is urgent to develop an open type low voltage ac current collecting apparatus with a switching value.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem of proposing among the above-mentioned background problem, provide an open type low pressure alternating current collection system of taking switching value, opened when the device buckle, the protruding button of switch bounces contactless, and this switching value signal termination transmission.
The purpose of the utility model is realized like this: an open type low-voltage alternating current collecting device with switching value comprises an open shell, wherein the open shell comprises an upper shell and a lower shell, and an iron core is arranged in the shell;
the iron core comprises an upper iron core and a lower iron core, an elastic sheet is arranged between the upper iron core and the upper shell, and the upper iron core is installed and then covers the iron core bracket; the top end of the lower shell is provided with a cover plate;
the lower shell is provided with a groove, the switch is installed in the groove, and a limiting rib is arranged in the groove;
the switch is arranged in the groove through a limiting rib, and a protruding button is arranged at the top end of the switch;
when the upper shell and the lower shell are opened, the raised button is bounced, and the switch is disconnected;
the limiting ribs comprise a first limiting rib, a second limiting rib and a third limiting rib;
the first limiting rib and the second limiting rib are transversely arranged, the width of the first limiting rib is larger than that of the second limiting rib, the first limiting rib is arranged on the upper side and the lower side of the switch, and the second limiting rib is arranged on the left side and the right side of the switch;
and the third limiting rib is of a cylindrical structure and limits the lead to form an S-shaped structure.
The switch is fixed in the vertical direction of the first limiting rib, the switch is fixed in the transverse direction of the second limiting rib, and the switch lead is fixed by the third limiting rib to prevent the switch from being pulled off;
the first limiting rib is slightly wider and used for fixing the switch up and down and preventing the switch from moving up and down in the pressing process of the switch, and the second limiting rib is slightly shorter and used for fixing the switch left and right and preventing the switch from moving left and right; the third limiting rib is cylindrical, limits the lead to be S-shaped and is used for fixing the lead and protecting the connection position of the lead and the switch;
the iron core is wrapped by the framework and then wound with the enameled wire to form a coil; the framework is formed by closing an upper framework and a lower framework; the coil has 2 outgoing lines and outputs current signals.
And the side edge of the framework is also provided with a limiting hole.
The coil is provided with 2 outgoing lines and outputs current signals.
The upper shell and the lower shell are connected through a hinge to form an open shell.
And the upper shell and the lower shell are provided with lead sealing holes in a matching manner.
The periphery of the switch is also provided with a switch cover plate in a matching manner, the top of the switch cover plate is provided with an opening, and the shape of the opening is matched with the convex button of the switch.
The upper iron core and the lower iron core are fixed through a buckle and are in close contact with each other to form a complete magnetic circuit.
The buckle and the groove are arranged on the same side.
Compared with the prior art, the utility model has the advantages of it is following:
the utility model relates to a take open type low pressure alternating current collection system of switching value need not to cut off the electricity during installation, can live operation, and closed direct use can the on-the-spot simple installation, reduces the human cost.
The utility model relates to a take open type low pressure alternating current collection system of switching value, it does not block well or the mutual-inductor is ageing to lead to the casing to break when the device buckle, and upper and lower casing is bounced open, and iron core contact failure, the protruding button of switch of casing will upwards pop out under the mutual-inductor, and the switch disconnection, switching value signal termination transmission plays the effect of suggestion open type low voltage transformer stop work.
The utility model relates to a take open type low pressure alternating current collection system of switching value, upper and lower casing have lead sealing hole, in case the installation finishes to carry out lead sealing immediately, can not be opened into the ash.
Drawings
Fig. 1 is the structure diagram of the open type low-voltage ac current collecting device with the switching value of the present invention.
Fig. 2 is the structure explosion diagram of the open type low-voltage ac current collecting device with the switching value of the present invention.
Fig. 3 is a schematic view of the open type low-voltage ac current collection device with switching value according to the present invention.
Fig. 4 is a schematic side view of the open type low-voltage ac current collecting device with switching value according to the present invention.
Fig. 5 is a schematic diagram of the switch limit rib of the open type low-voltage ac current collection device with the switching value according to the present invention.
FIG. 6 is a top view of the groove of the open type low-voltage AC current collecting device with switching value of the present invention
Fig. 7 is a schematic view of the open type low-voltage ac current collector with switching value according to the present invention.
Fig. 8 is a schematic view of the working principle of the open type low-voltage ac current collecting device with switching value according to the present invention.
Wherein: 1. an open housing; 2. a spring plate; 3. an iron core; 4. an iron core support; 5. a cover plate; 6. a framework; 7. a switch; 8. a switch cover plate; 9. a limiting hole; 10. sealing the lead hole; 11. a coil, 12 and a limiting rib;
1.1, an upper shell; 1.2, a lower shell;
3.1, mounting an iron core; 3.2, a lower iron core;
6.1, mounting a framework; 6.2, lower skeleton;
12.1, limiting ribs I; 12.2 a second limiting rib; 12.3 limiting rib III.
Detailed Description
The invention is described below with reference to the accompanying drawings and specific embodiments:
as shown in fig. 1 to 8, an open type low-voltage alternating current collecting device with switching value comprises an open shell 1, wherein the open shell 1 comprises an upper shell 1.1 and a lower shell 1.2, and an iron core 3 is arranged in the shell 1;
the iron core 3 comprises an upper iron core 3.1 and a lower iron core 3.2, an elastic sheet 2 is arranged between the upper iron core 3.1 and the upper shell 1.1, and the upper iron core 3.1 is covered with an iron core bracket 4 after being installed; the top end of the lower shell 1.2 is provided with a cover plate 5;
a groove is formed in the lower shell 1.2, the switch 7 is installed in the groove, and a limiting rib 12 is arranged in the groove;
switch 7 passes through spacing muscle 12 to be installed in the recess, switch 7 top is provided with a protruding button, switch 7 one end is embedded in the recess, and the one end is protruding to surpass lower casing, accomplishes the break-make of signal of telecommunication with last casing cooperation.
In this embodiment, the switch 7 has a protruding button on top, when installed, the upper casing 1.1 and the lower casing 1.2 are closed, and the protruding button is pressed down, the switch 7 is turned on, and when the upper casing 1.1 and the lower casing 1.2 are opened, the protruding button pops up, and the switch 7 is turned off.
The limiting ribs 12 comprise a first limiting rib 12.1, a second limiting rib 12.2 and a third limiting rib 12.3;
the first limiting rib 12.1 and the second limiting rib 12.2 are both transversely arranged, the width of the first limiting rib 12.1 is larger than that of the second limiting rib 12.2, the first limiting rib 12.1 is arranged on the upper side and the lower side of the switch 7, the second limiting rib 12.2 is arranged on the left side and the right side of the switch 7, and the first limiting rib 12.1 and the second limiting rib 12.2 form a fixed switch 7 with a matching structure;
and the third limiting rib 12.3 is of a cylindrical structure and limits the lead to form an S-shaped structure.
The iron core 3 is wrapped by the framework 6 and then wound with an enameled wire to form a coil 11; the framework 6 is formed by closing an upper framework 6.1 and a lower framework 6.2.
And a limiting hole 9 is also formed in the side edge of the framework 6.
In this embodiment, the coil 11 has 2 lead wires and outputs a current signal.
The upper shell 1.1 and the lower shell 1.2 are provided with lead sealing holes 10 in a matching mode, and the lead sealing holes are sealed through lead wires.
The periphery of the switch 7 is also provided with a switch cover plate 8 in a matching manner, the top of the switch cover plate 8 is provided with an opening, and the shape of the opening is matched with the convex button of the switch.
In this embodiment, the clip and the groove are disposed on the same side.
In this embodiment, the upper iron core 3.1 and the lower iron core 3.2 are fixed by a buckle, form a complete magnetic circuit by close contact, and fix the iron core 3 by the iron core bracket 4.
In this embodiment, the iron core 3 is fixed by the framework 6 in a closed manner, and is wound with an enameled wire to form a coil 11, the coil 11 has two leads which are respectively welded with a different color RV wire and then pass through the limiting hole 9 of the framework 6 to be fixed, and the switch cover plate 8 is covered.
In this embodiment, the lower housing 1.2 is internally provided with a limiting rib 12, the switch 7 is clamped by the groove after being installed, a double-core wire is welded on a pin at the bottom of the switch and is sleeved with a heat-shrinkable tube for insulation, and finally the double-core wire is led out through the double-core wire, and two wire ends of the double-core wire are conducted when the switch is pressed.
In this embodiment, the upper casing 1.1 and the lower casing 1.2 are connected through a hinge, the upper casing and the lower casing are closed to form an open casing 1, the switching value is pressed down to keep a normally open state, and finally the open casing and the open casing are sealed by lead.
As shown in fig. 8, the utility model relates to an open type low voltage alternating current collection device with switching value, its theory of operation is as follows:
the primary winding of the current transformer is connected in series in a tested line, I1 is a line current, namely a primary current of the current transformer, N1 is a primary turn number of the current transformer, I2 is a secondary current (usually 5A, 1A) of the current transformer, N2 is a secondary turn number of the current transformer, and Z2e is secondary loop equipment and connecting wire impedance. When a primary current flows in from the end P1 of the current transformer and flows out from the end P2 of the current transformer, and when the secondary Z2e is switched on, the current I2 flows through the secondary winding of the current transformer from S1 through Z2e to S2 to form a closed loop by the principle of electromagnetic induction. Therefore, the current can be obtained under the ideal condition of I1 multiplied by N1= I2 multiplied by N2, so that I1/I2= N1/N2= K, and K is the transformation ratio of the current transformer.
The above is only a specific application example of the present invention, and does not constitute any limitation to the protection scope of the present invention. All the technical solutions formed by equivalent transformation or equivalent replacement fall within the protection scope of the present invention.
Claims (10)
1. The utility model provides a take open type low pressure alternating current collection system of switching value which characterized in that: the iron core type motor comprises an open shell (1), wherein the open shell (1) comprises an upper shell (1.1) and a lower shell (1.2), and an iron core (3) is arranged in the shell (1);
the iron core (3) comprises an upper iron core (3.1) and a lower iron core (3.2), an elastic sheet (2) is arranged between the upper iron core (3.1) and the upper shell (1.1), and the upper iron core (3.1) is installed and then covered with an iron core bracket (4); a cover plate (5) is arranged at the top end of the lower shell (1.2);
a groove is formed in the lower shell (1.2), the switch (7) is installed in the groove, and a limiting rib (12) is arranged in the groove;
switch (7) are installed in the recess through spacing muscle (12), switch (7) top is provided with a protruding button.
2. The open type low-voltage alternating current collecting device with the switching value according to claim 1, characterized in that: the limiting ribs (12) comprise a first limiting rib (12.1), a second limiting rib (12.2) and a third limiting rib (12.3);
the first limiting rib (12.1) and the second limiting rib (12.2) are both transversely arranged, the width of the first limiting rib (12.1) is larger than that of the second limiting rib (12.2), the first limiting rib (12.1) is arranged on the upper side and the lower side of the switch (7), the second limiting rib (12.2) is arranged on the left side and the right side of the switch (7), and the first limiting rib (12.1) and the second limiting rib (12.2) form a fixed switch (7) with a matched structure;
and the third limiting rib (12.3) is of a cylindrical structure and limits the lead to form an S-shaped structure.
3. The open type low-voltage alternating current collecting device with the switching value according to claim 1, characterized in that: the iron core (3) is wrapped by the framework (6) and then wound with an enameled wire to form a coil (11); the framework (6) is formed by closing an upper framework (6.1) and a lower framework (6.2).
4. The open type low-voltage alternating current collecting device with the switching value according to claim 3, wherein: and a limiting hole (9) is further formed in the side edge of the framework (6).
5. The open type low-voltage alternating current collecting device with the switching value according to claim 3, wherein: the coil is provided with 2 outgoing lines and outputs current signals.
6. The open type low-voltage alternating current collecting device with the switching value according to claim 1, characterized in that: the upper shell (1.1) and the lower shell (1.2) are connected through a hinge to form the open shell (1).
7. The open type low-voltage alternating current collecting device with the switching value according to claim 1, characterized in that: the upper shell (1.1) and the lower shell (1.2) are provided with lead sealing holes (10) in a matching manner.
8. The open type low-voltage alternating current collecting device with the switching value according to claim 1, characterized in that: the periphery of the switch (7) is also provided with a switch cover plate (8) in a matching manner, the top of the switch cover plate (8) is provided with an opening, and the shape of the opening is matched with the convex button of the switch.
9. The open type low-voltage alternating current collecting device with the switching value according to claim 1, characterized in that: the upper iron core (3.1) and the lower iron core (3.2) are fixed through a buckle and are in close contact to form a complete magnetic circuit.
10. The open type low-voltage alternating current collecting device with the switching value according to claim 9, characterized in that: the buckle and the groove are arranged on the same side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022605052.5U CN213544663U (en) | 2020-11-12 | 2020-11-12 | Open type low-voltage alternating current collecting device with switching value |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022605052.5U CN213544663U (en) | 2020-11-12 | 2020-11-12 | Open type low-voltage alternating current collecting device with switching value |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213544663U true CN213544663U (en) | 2021-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022605052.5U Active CN213544663U (en) | 2020-11-12 | 2020-11-12 | Open type low-voltage alternating current collecting device with switching value |
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| Country | Link |
|---|---|
| CN (1) | CN213544663U (en) |
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- 2020-11-12 CN CN202022605052.5U patent/CN213544663U/en active Active
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